Changing States of Matter

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A change in state from a solid to a liquid

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Melting is the process where a solid turns into a liquid when heat is applied.

Front

According to Charles's Law, when the temperature of a gas at constant pressure is increased, its...

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Volume increases. This law states that the volume of a gas is directly proportional to its temperature when pressure is constant.

Front

A change in state from a solid to a gas, WITHOUT passing through the liquid state

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Sublimation is the process where a solid changes directly into a gas without becoming a liquid.

Front

Salt and sugar are examples of this type of solid?

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Crystalline solids have a well-defined geometric structure and a regular arrangement of particles.

Front

This type of vaporization occurs ONLY on the surface of a substance

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Evaporation is the process where molecules at the surface of a liquid gain enough energy to become gas.

Front

What is the process called when a gas turns into a liquid?

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Condensation is the process where gas molecules lose energy and come together to form a liquid.

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What is the term for a solid that does not have a regular geometric structure?

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Amorphous solids lack a defined shape and structure, such as glass or rubber.

Front

What happens to the particles of a substance when it is heated?

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The particles gain energy, move faster, and may change state from solid to liquid or liquid to gas.

Front

What is boiling?

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Boiling is a type of vaporization that occurs throughout the entire liquid when it reaches its boiling point.

Front

What is the freezing point of water?

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The freezing point of water is 0 degrees Celsius (32 degrees Fahrenheit), where it changes from liquid to solid.